Not a horror show.
“terroir
tɛrˈwɑː,French tɛrwar/Submit
noun
noun: terroir
the complete natural environment in which a particular wine is produced, including factors such as the soil, topography, and climate.
the characteristic taste and flavour imparted to a wine by the environment in which it is produced.
noun: goût de terroir; plural noun: goût de terroirs”
Where fruit cultivars vary widely in character and further vary widely by growing conditions, terroir is relevant. I say specifying conditions required to produced specific results - flavor, texture, sweetness etc - is the next frontier for gourmet mango growers (and other fruits).
No better place to start that among the world’s premier resource, right here.
What have you noticed makes the difference with a specific mango? Things that can be controlled would be ideal to note.